Some components (Filesystem dock, file picker...) sort files incorrectly

[mieldepoche]

Tested versions

• happens in v4.3.dev.custom_build [99ff024f7]
• does not happen in v4.3.dev5.official [c9c17d6ca]

System information

linux

Issue description

Files fail to get sorted by name. When creating them, or when loading a project. When creating them, it seems that they just get sorted by creation time, regardless of the name.

edit: additionally, it seems that the file picker popups also can't sort files (when creating a new project and trying to pick a destination, the system folders are all unsorted).

Steps to reproduce

Either open any exisiting project or:

https://github.com/godotengine/godot/assets/71937306/1de9fe95-fdf1-41cf-848e-8d5bedcad2c7

Minimal reproduction project (MRP)

any

[AThousandShips]

Seems to be from:

• #87874

Working on a fix, though I'm not quite sure how it would happen

Edit: Got it, fixing it now